213333372 has 96 divisors (see below), whose sum is σ = 659635200. Its totient is φ = 58297536.

The previous prime is 213333353. The next prime is 213333397. The reversal of 213333372 is 273333312.

It is a happy number.

It is a super-2 number, since 2×213333372² = 91022255217780768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11254 + ... + 23522.

It is an arithmetic number, because the mean of its divisors is an integer number (6871200).

Almost surely, 2^213333372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213333372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329817600).

213333372 is an abundant number, since it is smaller than the sum of its proper divisors (446301828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213333372 is a wasteful number, since it uses less digits than its factorization.

213333372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12312 (or 12304 counting only the distinct ones).

The product of its digits is 6804, while the sum is 27.

The square root of 213333372 is about 14605.9361904672. The cubic root of 213333372 is about 597.5206689745.

Adding to 213333372 its reverse (273333312), we get a palindrome (486666684).

The spelling of 213333372 in words is "two hundred thirteen million, three hundred thirty-three thousand, three hundred seventy-two".